Pen Pressure not working

I've noticed recently that when I'm drawing faintly (barely applying any pressure) the line comes out super dark and hard as if I just bore down on the pen. I haven't been drawing as much since the update, and it didn't do it before then. However I have noticed that my Intuos 4 has been dropping it's tablet settings...could it be CSP or the Wacom that is doing it? It's doing it randomly, but feels like it's every 5 minutes or so.

I know CSP used to do this if something was taking up processor (like a Anti-virus) at the moment I was drawing.